Envelope



. A. WOLF ENVELOPE Dec. 9, 1941.

Filed April '7, 1939 d e a va, e a

COUPON e` COUPON e' /VVVTOR COUPON I FIG' Z /Vozuafa/ fra/#var Patented Dec. 9, 1941 A UNITED STAT 2,265,411 ENvELoPE Howard A. Wolf, Philadelphia, Pa., assignor to Louis Wolf, Elias Wolf, Howard A. Wolf, and Walter L. Wolf, copartners trading and doing business as Woll:` Brothers, Philadelphia, Pa.

Application April 7, 1939, Serial No. 266,465

2 Claims.

. this invention will be formed of any suitable paper, may be of any desired dimensions and will be provided with identification and with closure means adapted to be releasably locked in closed position and to be sealed repeatedly.v

More specifically, according to this invention a closure ap, having a removable extension adapted to serve for identification, Will be provided with a tongue adapted to removably engage with the body of the envelope to releasably secure the closure flap in closed position and, at the same time, the tongue and the closure flap independently of the tongue will be gummed, enabling either the tongue or the flap to be independently adhered to the body of the envelope to seal the flap in closed position.

Having now indicated in a general Way the nature and purpose of this invention, I will proceed to a detailed description of a preferred embodiment thereof with reference to the accompanying drawing in which:

Figure l is a rear view of the upper part of an envelope embodying this invention.

Figure 2 shows the envelope of Figure 1 with the closure flap in closing position.

Figure 3 shows the envelope of Figure 2 with the locking tongue in position to secure the closure flap in closed position.

Figure 4 is a sectional View of the envelope and the closure fiap on line 4 4, Figure 2.

Figure 5 is a sectional View of the envelope and the closure flap showing the locking tongue extended through the body of the envelope.

Figure 6 is a sectional view of the envelope and the closure flap on line 6-6, Figure 3.

Figure 7 is a fragmentary view showing in detail a modification of the structure shown in Figures 1-6.

In the several figures a indicates the back wall and b the front wall of the body of an envelope or bag which may be formed of any suitable material, as paper, and in any suitable Well known manner. Below the upper edge of the back wall a the walls a and b are provided with aligning apertures c. The aligning apertures c are shown as circular but, as will appear, they may be of any suitable shape and size.

sure fiap d an extension of Which in turn forms an identification coupon e. A line of perforations or indents j defines juncture of the closure flap and the coupon e and permits ready removal of the coupon.

A locking tongue y, adapted, when the closing flap d is folded down against the back wall a, on line lc, k, to align with the openings c, is formed in the closure flap by slitting the flap, on the lines h, from the line of juncture of the fiap and coupon, as shown in Figure l, or wholly Within the body of the fiap, on the lines z', as shown in Figure 7. The locking tongue y is formed of a size greater than that of the aligning openings c in the Walls of the envelope and is provided at its base with oppositely extending ears y, 7'. The line of juncture of the locking tongue g with the flap d is desirably weakened as by perforations orindents l.

The inner surface of the locking tongue is coated with an adhesive m or gummed.- Similarly, an area of the inner surface of the closure fiap adjacent its free edge and on opposite sides of the locking tongue is coated with adhesive m or gummed. Any suitable substance or composition which will be rendered adhesive by moisture may be used for gumming the locking tongue and fiap.

Variously, the adhesive m or gumming may, if desired, be omitted from either the locking tongue or the closure ap, or from both.

Again, when desirable for additional strength, the walls of the envelope about the openings c and the locking tongue may be reinforced by means of reinforcing material adhered to the Walls and tongue.

In using the envelope according to this invention as described above, for example, to contain photographic film for processing and the processed film and prints, the exposed film is placed in the bag, the closure flap d and coupon e are folded down on line lc, lc and the locking tongue g flexed through the aligning openings c and bent up against the front Wall b, on the line of perforations or indents l, as shown in Figures 5 and 6. The coupon is torn off on the line of perforations or indents f and given to the customer for future identification when the processing of the film has been completed.

Obviously, this coupon may contain a number corresponding with a number on the body of the envelope, or any other identifying symbol, the name and address of the customer and any desirable data, advertising matter and What not.

Since the exposed film will be in a roll or pack The front wall b is extended to form a cloand will comprise a single article, the closure openings c and now the adhesive m on the lock# Y ing tongue is moistened and the tongue adhered to the outside of the front wall b of the envelope,

thus doubly insuring that theY closure ap will bel retained in closed position for the protection; of

the several negatives and prints until called for` Y by the customer.

In due course, when the customer presents the identification coupon, the customer will generally desire to examine the contents of the envelope and to such end it will only be necessary to tear the closure flapawayfrom the locking tongue along the lli'ne of perforations or indents Z, thus freeing the flap for ready opening of the envel-ope. 1 Y

VThe contents of the Aenvelope having been examined andr returned the closure iiap may be again secured, for the continuedY protection of the contents, by merely moistening the adhesive m on-the fla-p and adhering it tothe back wall a. As will be obvious, when the envelope is closed the aligning openings c'will allow passagel of a ringerA or Vlingers enabling the envelope to be conveniently carried.

It will be appreciated that itis not intended be made Without vdeparting from "the scope of the' invention.

What I claim and desire to protect by Letters Patent is:

1. An envelope comprising a body having front and back walls provided with aligning openings, a closure flap and a detachable coupon formed by an extension of one of the walls, a retrovertible tongue formed. by slitting the closure flap in an area in line with the aligning openings in the front and back walls so. that the tongue may be passed through said openings when the closure iiap is folded into closing position, a coating of adhesive on the inner surface of the tongue whereby it may be adhered to a wall of the envelope exteriorly thereof and a coating of adhesive on the inner surface of the closure flap whereby' it may be adhered to the opposite wall of the,` envelope exteriorly thereof independently of theY tongue, the line of juncture of the tongue with'tne closure ap being weakened to permit ready separation of the two when the tongue is adhered to a Wall of the envelope.

2. An envelope cemprisingn,l body having front' and back walls provided with aligning openings,

a closure" flap and a detachable coupon formed by an extensionl of one of the Walls, a retrovertible tongue of larger size than the said aligning openings formedI by' slitting the closure flap in an area inline with the aligning openings in thefront and back walls so that the tongueA may bepassed Ythrough said openings when the closure flap is folded into closingA position, a coating of adhesive onv the inner surface of' the tongue Whereby'it may be adhered to a wall' of the envelope exteriorly thereof anda coatingy of adhesive on the inner surface of they closure flapv whereby'itl may be adhered to the opposite wall of the envelope exteriorlythereof independentlyof the tongue, the line of juncture' of the tongue with the closure'ap being weakened vto permit ready separation of the' two ywhen the tongue isL 

